Feature&colon;Automatic Handsfree&comma;mobile phone as well as gps tracker&comma;special for the elderHigh flashlight&comma; Large font&comma; Loud voice&comma; support TF card&comma; Loud speaker of music and radioHigh-accuracy GPS chip&comma; GPS&sol;LBS intelligent switching to realize accurate positionKeelin Tracking Service Platform&comma; Keelin APP Client&comma; SMS queryRemotely monitor&comma; SOS alarm and many useful alarms&sol;alertsCall straight line to the elder &lpar;can get through even not answering the phone&rpar;Built-in pedometer&comma; daily activity of the elder is clearly seen from APP mobile clientAttention&colon;Please charge K20 when receive a low battery alarm&period;